| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| T2o | 2-pin connector, near battery |
| T2p | 2-pin connector, on alternator |
| 1 | Earth strap, battery - body |
| 49 | Earth point, near battery |
| 500 | Screw connection 1 (30), on relay plate |
| 501 | Screw connection 2 (30), on relay plate |
| D26 | Connection (B+), in alternator wiring harness |
| P1 | Positive connection (30), in fuse holder on battery |
| D | Ignition/starter switch |
| G | Fuel gauge sender |
| G6 | Fuel system pressurisation pump |
| J59 | X-contact relief relay |
| J362 | Immobilizer control unit |
| R | Radio |
| T1a | Single pin connector, behind the right trim in front dash panel |
| T4i | 4-pin connector, on fuel pump |
| T6a | 6-pin connector, behind the right trim in front dash panel |
| T6e | 6-pin connector, behind the dash panel near relay plate |
| T6g | 6-pin connector, behind the dash panel near relay plate |
| T7c | 7-pin connector, on ignition/starter switch |
| T8a | 8-pin connector, on immobilizer control unit |
| T8d | 8-connector, on radio |
| 51 | Earth point, in luggage compartment |
| 86 | Earth connection 1, in rear wiring harness |
| A2 | Positive connection (15), in dash panel wiring harness |
| G39 | Lambda probe |
| J623 | Engine control unit |
| N71 | Idling speed stabilisation valve |
| T4c | 4-pin connector, on lambda probe |
| T4w | 4-pin connector, on idling speed stabilisation valve |
| T6a | 6-pin connector, behind the right trim in front dash panel |
| T80a | 80-pin connector, on engine control unit |
| 341 | Earth connection 3, in injection system wiring harness |
| E42 | Positive connection (30a), in injection system wiring harness |
| J101 | Radiator fan 2nd speed relay |
| J623 | Engine control unit |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| N152 | Ignition transformer |
| P | Spark plug connector |
| Q | Spark plugs |
| T2ca | 2-pin connector, on injector, cylinder 1 |
| T2cb | 2-pin connector, on injector, cylinder 2 |
| T2cc | 2-pin connector, on injector, cylinder 3 |
| T2cd | 2-pin connector, on injector, cylinder 4 |
| T3p | 3-pin connector, on ignition transformer |
| T5p | 5-pin connector, near cylinder head cover |
| T6k | 6-pin connector, behind the left trim in front dash panel |
| T6n | 6-pin connector, behind the right trim in front dash panel |
| T9c | 9-pin connector, on radiator fan 2nd speed relay |
| T80a | 80-pin connector, on engine control unit |
| G3 | Positive connection in wiring harness - injectors |
| G61 | Knock sensor 1 |
| J362 | Immobilizer control unit |
| J623 | Engine control unit |
| N17 | Cold start valve |
| N80 | Activated charcoal filter system solenoid valve 1 |
| T2b | 2-pin connector, on active charcoal filter system solenoid valve 1 |
| T2bx | 2-pin connector, on cold start valve |
| T2by | 2-pin connector, on fuel pump for cold start |
| T2e | 2-pin connector, on knock sensor 1 |
| T6a | 6-pin connector, behind the right trim in front dash panel |
| T6n | 6-pin connector, behind the right trim in front dash panel |
| T8a | 8-pin connector, on immobilizer control unit |
| T80a | 80-pin connector, on engine control unit |
| V263 | Fuel pump for cold start |
| E30 | Connection (87a), in engine wiring harness |
| E45 | Connection (87), in injection system wiring harness |
| F129 | Air conditioning system pressure switch |
| J17 | Fuel pump relay |
| J41 | Cold start device relay |
| J209 | Fresh air blower and radiator fan relay |
| J623 | Engine control unit |
| T4e | 4-pin connector, on air conditioning system pressure switch |
| T6a | 6-pin connector, behind the right trim in front dash panel |
| T6k | 6-pin connector, behind the left trim in front dash panel |
| T6n | 6-pin connector, behind the right trim in front dash panel |
| T9b | 9-pin connector, on fuel pump relay |
| T9h | 9-pin connector, on fresh air blower and radiator fan relay |
| T9k | 9-pin connector, on cold start device relay |
| T80a | 80-pin connector, on engine control unit |
| E41 | Positive connection (15), in injection system wiring harness |
| F163 | Thermal switch for air conditioning system shut-off |
| G28 | Engine speed sender |
| G62 | Coolant temperature display sender |
| G127 | Throttle valve positioner sender |
| J365 | Air conditioning system switch-off relay |
| J623 | Engine control unit |
| T1au | Single pin connector, on thermal switch for air conditioning system shut-off |
| T2d | 2-pin connector, on coolant temperature display sender |
| T3a | 3-pin connector, on throttle valve positioner sender |
| T3o | 3-pin connector, on engine speed sender |
| T6c | 6-pin connector, behind the right trim in front dash panel |
| T6n | 6-pin connector, behind the right trim in front dash panel |
| T8b | 8-pin connector, behind dash panel |
| T9a | 9-pin connector, on air conditioning system switch-off relay |
| T80a | 80-pin connector, on engine control unit |
| 339 | Earth connection (sender earth), in injection system wiring harness |
| E47 | Positive connection 2 (5 Volt), in injection system wiring harness |
| L2 | Connection in air conditioning system wiring harness |
| G22 | Speedometer sender |
| G40 | Hall sender |
| G42 | Intake air temperature sender |
| G71 | Intake manifold pressure sender |
| J623 | Engine control unit |
| T3b | 3-pin connector, on Hall sender |
| T3c | 3-pin connector, on speedometer sender |
| T4x | 4-pin connector, on intake air temperature sender |
| T5o | 5-pin connector, near cylinder head cover |
| T6a | 6-pin connector, behind the right trim in front dash panel |
| T80a | 80-pin connector, on engine control unit |
| 331 | Earth connection, in injection system wiring harness |
| 342 | Earth connection 4, in injection system wiring harness |
| E40 | Connection (speedometer sender), in injection system wiring harness |
| E50 | Positive connection 3 (5 Volt), in injection system wiring harness |
| G2 | Coolant temperature display sender |
| S13 | Fuse in relay plate fuse holder |
| T2ag | 2-pin connector, on coolant temperature display sender |
| T6b | 6-pin connector, behind the right trim in front dash panel |
| T16a | 16-pin connector, behind driver storage compartment |
| 335 | Earth connection 5, in dash panel wiring harness |
| A164 | Positive connection 2 (30a), in dash panel wiring harness |
| F22 | Oil pressure switch |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| J285 | Control unit in dash panel insert |
| J362 | Immobilizer control unit |
| K | Dash panel insert |
| K2 | Alternator warning lamp |
| T1p | Single pin connector, on oil pressure switch |
| T6b | 6-pin connector, behind the right trim in front dash panel |
| T6i | 6-pin connector, behind the left trim in front dash panel |
| T8a | 8-pin connector, on immobilizer control unit |
| T16a | 16-pin connector, behind driver storage compartment |
| T32a | 32-pin connector, on dash panel insert |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| Designation of connector: | | A - | ABS control unit -J104- | | B - | 31-pin connector, on ABS control unit -T31a- |
| Airbag control unit -J234- | | | | | Designation of connector: | | A - | Airbag control unit -J234- | | B - | 75-pin connector, on ABS control unit -T75a- |
| Control unit with display in dash panel insert -J285- | | | | | Designation of connector: | | A - | Control unit with display in dash panel insert -J285- | | B - | 32-pin connector, on control unit with display in dash panel insert -T32a- | | 8 - | Coolant temperature sender | | 20 - | Immobilizer control unit | | 29 - | Brake system monitoring | | B - | 32-pin connector, on control unit with display in dash panel insert -T32a- | Note | for models with 1.0 l Flex engine, 1.0 l and 1.4 l petrol engines only, from March 2008 | | 4 - | Terminal CAN-Bus high | | 14 - | Brake system monitoring | | 15 - | Immobilizer control unit | | 16 - | Immobilizer control unit |
| Control unit with display in dash panel insert -J285- | Note | for models Generation IV with dash panel Generation III only | | | | | Designation of connector: | | A - | Control unit with display in dash panel insert -J285- | | B - | 32-pin connector, on control unit in dash panel insert -T32a- | | 8 - | Coolant temperature sender | | 16 - | Immobilizer control unit | | 22 - | Coolant shortage indicator sender | | 29 - | Brake system monitoring |
| Convenience system central control unit -J393- | | | | | Designation of connector: | | A - | Convenience system central control unit -J393- | | B - | 12-pin connector, on convenience system central control unit -T12c- | | C - | 23-pin connector, on convenience system central control unit -T23a- | | D - | 12-pin connector, on convenience system central control unit -T12b- |
| Engine control unit -J623- | | | | | Designation of connector: | | A - | Engine control unit -J623- | | B/C - | 80-pin connector, on engine control unit -T80a- |
| Air conditioning system control unit -J301- | | | | | Designation of connector: | | A - | Air conditioning system control unit -J301- | | B - | 5-pin connector, on air conditioning system control unit -T5d- | | C - | 7-pin connector, on heater control unit -T7d- |
| Immobilizer control unit -J362- | | | | | Designation of connector: | | A - | Immobilizer control unit -J362- | | B - | 8-pin connector, on immobilizer control unit -T8g- | | C - | 2-pin connector, on immobilizer control unit -T2bp- |
| Alarm system control unit -J85- | | | | | Designation of connector: | | A - | Alarm system control unit -J85- | | B - | 22-pin connector, on alarm system control unit -T22a- |
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